GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Cell 153: Power, Ground, Radio


Object Number: 507044  Size: FS
Cellular Communication Components
Cellular Telephone Circuit Description
Cell 153: Radio and C252
Ground Distribution Schematics
Ground Distribution Schematics
Fuse Block Schematics
Power Distribution Schematics
Power Distribution Schematics
Cellular Telephone Schematics
Cellular Telephone Schematics
Figure 2:

Cell 153: Radio and C252


Object Number: 507056  Size: FS
Cellular Communication Components
Cellular Telephone Circuit Description
Cell 153: Power, Ground, Radio